非晶合金变压器空载状态下试验异常情况的分析与思考  

Analysis of Abnormal Current Observed in No-load Test of Amorphous Alloy Transformer

作　　者：王慧[1] 王琦[2] 

机构地区：[1]湖北工业大学电气与电子工程学院,湖北武汉430068 [2]中国电力科学研究院,湖北武汉430074

出　　处：《陕西电力》2016年第3期58-62,共5页Shanxi Electric Power

基　　金：国家自然科学基金项目资助(51307154)

摘　　要：作为一种新型变压器产品,非晶合金变压器目前缺乏足够的异常试验数据。提出一种理论与试验相结合的方法,在试验过程中逐步排除可能导致试验异常的主要因素,发现变压器内部磁路出现因气隙变化造成磁化电流变化的情况,从而引起变压器输出电流出现异常变化,该结论对今后变压器的状态监测与故障诊断有一定的参考和借鉴作用,同时也为相关标准的修订工作提供一种新思路。As a new type of transformer,amorphous alloy transformer currently lacks enough abnormal test data.By the means of combing theoretical and experimental methods and eliminating other possible factors one by one,it comes to the conclusion that the abnormal current observed in the experiment is caused by changes of the excitation current,which is resulted from the fact that inner magnetic circuit is altered in transform because of the change of air gap.This conclusion will not only be benefit to maintenance and diagnosis of the transformer in similar cases in future,but also provides a new way for the revision of the relevant standards.

关 键 词：非晶合金变压器 空载 励磁 

分 类 号：TM41[电气工程—电器]